Abstract
The fragilities of over 150 different network-forming glass melts are shown to conform to a common dependence on just one parameter: the connectivity of the weakest network structure present in the associated glass solid. This includes both nonoxide network-forming chalcogenide melts as well as a variety of alkali oxide glasses, and spans a broad range of connectivity, φ, from polymeric structures (φ=2) to overconstrained random networks with connectivities well in excess of the rigidity threshold (φC=2.4). A theoretical framework for the origin of this universal pattern is offered within the context of entropic models of the glass transition.
| Original language | English |
|---|---|
| Article number | 062804 |
| Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
| Volume | 92 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2 2015 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Statistical and Nonlinear Physics
- Statistics and Probability
Cite this
Fragility of network-forming glasses : A universal dependence on the topological connectivity. / Sidebottom, David L.
In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 92, No. 6, 062804, 02.12.2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fragility of network-forming glasses
T2 - A universal dependence on the topological connectivity
AU - Sidebottom, David L.
PY - 2015/12/2
Y1 - 2015/12/2
N2 - The fragilities of over 150 different network-forming glass melts are shown to conform to a common dependence on just one parameter: the connectivity of the weakest network structure present in the associated glass solid. This includes both nonoxide network-forming chalcogenide melts as well as a variety of alkali oxide glasses, and spans a broad range of connectivity, φ, from polymeric structures (φ=2) to overconstrained random networks with connectivities well in excess of the rigidity threshold (φC=2.4). A theoretical framework for the origin of this universal pattern is offered within the context of entropic models of the glass transition.
AB - The fragilities of over 150 different network-forming glass melts are shown to conform to a common dependence on just one parameter: the connectivity of the weakest network structure present in the associated glass solid. This includes both nonoxide network-forming chalcogenide melts as well as a variety of alkali oxide glasses, and spans a broad range of connectivity, φ, from polymeric structures (φ=2) to overconstrained random networks with connectivities well in excess of the rigidity threshold (φC=2.4). A theoretical framework for the origin of this universal pattern is offered within the context of entropic models of the glass transition.
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UR - http://www.scopus.com/inward/citedby.url?scp=84951789460&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.92.062804
DO - 10.1103/PhysRevE.92.062804
M3 - Article
VL - 92
JO - Physical Review E
JF - Physical Review E
SN - 2470-0045
IS - 6
M1 - 062804
ER -